left over oceans
hey Greg
why don't you just cut the OPP with a lesser brand of salt ie: IO. I'm cutting what I have left of my OPP with IO at a rate of 50/50 and this has helped with Ca and Kh. it has brought up my alk and lowered my Ca to reasonable levels. Now i just add Kent buffer for now to steady out the Ca usage of the tank.
cheers
Geoff
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